Thermostatic alarm.



110.839,0 661y PATBNTED 11110.18, 1906.

'- A. GYLPE a; I. OLSON.

' THERMOSTATIC ALARM.

APPLICATION FILED JULY 11, 1904 *Tam /3 a *y Y 8 '.rz man in? l UNrrED srArss eerst-'rr orifice.

ALBERT GAYLFE AANDISRAEL OLSQN, or* BERWYN, ILLiNOrs.

THEereosrsTic; ALARM. l

No. 839,0ee,

ISRAEL OLSON, citizens of the UnitedStates,

4 jects, which. will vloecoirie residing et Berwyn, in the' county of Cool; end State of Illmols, lleve invented e. .new

end useul 'llierruostetic Alarm ci: which the followiug'is e speciiicetion. 1

Our invention relates to e device comprising e trip-lever which is releasedy et e prede termiriecl.4 terripereture 5 end the objects of our improvement are, first, 'to vprovide e. device which is extremely sensitive 'to-the chen es in temperature; second.,- to afford facilities 'or adjustment to releese the trip-lever at any desired teur erstere; third, to Hieke e. clics' simple,- endpdureble device, 'and other ol?- appereut from the description to. lollow. f V

' This invention consists of one or more hollow dislts 'or disphrcgmsconteining ei'luid arranged in e fre'meso es to coutrole'pivoted erm against which the trip-lever rests.

The device illustrated 'and to be described shows one forni ol construction, end .it isolivious vthat the construction mcy di'er radi cally 'from that shows. cud still embody our v invention..

,Referring to the drawings, Figure 1 is e side elevation.l of a'devce embodyiu our in# vention. lilig.' Eis e.v plexi View of t e seme. Fig, 3 is a. front elevation of the seme, and lFi 4 is s. section on lrle 4 4 of Fig. 2.

' imiler Tefererice'clierecters refer to simin ler erts throughout tlie several views.

. .he bese 5, upright 6, end top 7 constitute the frame of the mecldue'. The bese 5 end top 7v ere'provided with theA concentric per -foretioris Send 9, respectively.l The perforattiou 8 is vprovided with e screw-tlueed into which is Iiltted the screw 10. The top erid of thev scretiT 10 is secured to 'the lower' side of the hollow disk 11, which is liermeticeily sealed ed- 'f'conteins e liquid 412, preferably elcoholf Thetwo wells of the disk .11,inclosing the el'cOhOL'ere preferably made of very t materiel and ere exposed es much es possible to the surrounding atmosphere, so y that the tem ereture of the atmosphere 1s readily' trensierred to the alcohol. To incrosse the rigidity of the disk l1 Without thickening the wells, the ribs 13 ere'provirled.

'Wc have sl'lowu two disks .1.1 in. the drawings,

but one 'or more may be used, whichever is found moet practical. To tl're top slde of' the up per disk 1 1 secured it pusl1-pm 14, littmg loosely iutlie perfor-stione in the top 7.

`Specification of Letters Peteur.. Application mea my 1771,11904. semi N0. 216.155.

Patented Dec. 18, 190,6.

Villen the terripereture of .the elcoliol is raised., it will expend end bulge out the sides of the disks 11, thus .increasing the distance from the cot-tom side ol the lower disk .1.1. to

.the top side 'of the upper disk l1, the oppos- -iug wells of the seperate disks being connected by. rigid festeuiugs, es the tubes l5. The lower support ol' the dislisn-Ji. e., the screw 1G-beir1g held from longitudinal movement in the bese 5, it is evident that the piu 14 must slide in the 'perforation 9 es the temperature of the alcohol 12 increases or decreeses. The pin 1li extends shove the too 7, wherel it contacts with the under side o' euerm 16, pivoted to the top 7 17, sud its free sud guided between two 'vertical lugs 18 on the vtop "7.'- Tlie point of contest 1between the pin 14. end erm 16 is preferably nearer the pivot thsnthe tree end of seid erm, sind e spring 19 is, provided to constantly hold the arm 16 down against, the pin 14.

loosely' ivoted on e pin 20, secured to a lug 21. on 't e base 5, is s. weighted trip-levcr 22, normally resting in en oblique ostori with. its free end against the free en of the erm 16. The pivotal exis of the lever and erm 18 are et right snglestc each other, and the parte ere so. arranged thettlie trip-lever .22 is allowed to drop' by gravity or otherwise when the erro. 16 is moved up against the tension of tlle spring 419. The amount ol" rivement necessary bythe erm 16 to release the trip-levcr 22 depends on the extent ofthe ,lap cl the free end olE seid lever over the free end of the erm 11S-dt'. c., if the lap is slight the movenfic-ut required 1s slight, md vice lille triple-.ver 22 ,when lreleased. is

arranged to contact with the releasing-leverof :my desired alarm, es en alarm-bell, (not should) or it may serve to close e'. switch for au electric bell. Assuming that the vdroppingof the lever 2i?. will cause en alarm-bell to ruig and the device .is placed in e room1 whenv the tcm vereture of the room rises sutlioieutly the alcolici 12- will brarcomelice-ted, expend, and cause the crm 16 to 'be moved .upward by the piu 14, the lever 22 will drop end cause the lcll to ring.

To facilitate adjusting the disks 11, so es to release the tripdcver 22 et :my desired.

temperature, we provide means to adj ust the screw 10 lmigitudiually in the 'wcrforet'ioil 8. The screw 1G is rigidly secure tothe disks 11, end to .adj ust the screw the disks' ere turnedin the proper direction. To enable the ready adjustment to the desired temper- Awhereby said tri ature, 'the up er :tace of the upper disk 1l provided wit i a graduated sca-ie 23, having the degrees marked thereon. The u-priglit (i may conveniently serve as the indicatingpoint.

In F ig. 2 oi' the drawings the sixty-degree mark is placed nearest the upright 6, indicating that the alarm will be sounded when Ythe tennierature in the room reaches sixty degrees or more. p

A stop-pm 24 may be provided on the disk il to contact with the upright 6 and prevent accidentally turning the disk in the wrong direction., L

Having thus fully described our invention, what we claim as new, and desire to secure by Letters Patent of the United States, is.-

1. in a device of the` class described, aU- shaped frame provided with `concentric periorations in its extremities, a diaphra Y in containing liquid, a trip-lever, a pin rigidly secured to said diaphragm extending into oneof said periorations, a second pin rigidly secured to said diaphragm extending into the other of said perforations, and means whereby said trip-lever is released by ther expansion of said diaphragm.

2. In a device oi the class described, a U- shaped frame having a )erforation in one end and a screwthreaded ole in the other end concentric therewith, a diaphragm, a triplever, a pin rigidly secured to said diaphragm, extending through said liertoration, a screw rigidly secured to said dl' ing with said screw-'threaded hole and means -lcver is released by the expansion of sai diaphragm, comprising a spring-pressed pivotcd lever in contact with said pin.

3, in a device ot the class described, a vertical frame having two horizontal arms, one arm provided with a perforation and the other arm provided with a screw-threaded hole concentric with said perforation, a tripiaphragm coperati i I l l g I i i i i 'named lever lever, a piurality of diaphragms having their axis concentric with said perforation and said h'olc, a pluralityv ol supports secured to the opposing sides oi said diaphragms, a pin rigidly secured to the exposed side. of one end dia-plnagni extending through said )crforation, a screw secured to the expose sido of the other end diaph 1agm cooperating with said sereW-tl'ircadcd hole, one of said diaphragms having its peripheraledge graduated to iiulicate the adjustment of said pin,' and means wh i' :by said trip-lever is released by the expansion of said diaphragms.

4. In a device of the class described, a suitable frame, a diaphragm containing liquid having one sido secured against movement to aid traine, a pin arranged to slide in said frame secured to the other side of said diaphragm, a pivoted lever in constant contact with said pin and a second pivoted and weighted lever normali)r in contact with said Erst-named lever, so that the expansion of said diaphragm will permit said secondto move to its operated position.

5. 1n a device ofthe class described, a suitable frame, a diaphragm containing liquid having one side said frame, said frame proviocd with a per*1 foration, a. concentrically-extending pin secured to the other side of said diaphragm arranged to inovc through said perforation and a pivoted trip-lever in constant contact with said pin whereby said trip-lever is moved when said diaphragm expands.

In testimony whereof we have signed our names to this spcciiication, in the presence of two subscribing witnesses, this 7th dav of July, 1904, at Chicago, illinois.

ALBERT GYLFE.

ISRAEL OLSON.

Witnesses R. J. JACKER, FRED. J.,SCHAD, Jr.

1 secured against movement to: 

